Structural studies on the gadolinium doped nanoceria prepared by combustion synthesis

A. Akbari-Fakhrabadi; R. V. Mangalaraja; M. A. Garcia-Pinilla; M. Jamshidijam; S. H. Chan

doi:10.1016/j.matlet.2014.03.126

Structural studies on the gadolinium doped nanoceria prepared by combustion synthesis

A. Akbari-Fakhrabadi, R. V. Mangalaraja, M. A. Garcia-Pinilla, M. Jamshidijam, S. H. Chan

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Nanosized Ce_1-xGd_xO_2-x/2 (x=0.1, 0.2 and 0.3) with different stoichiometric compositions was synthesized by the self-sustaining combustion method and calcined at 700 °C for 2 h. Nitrogen adsorption-desorption isotherm measurements showed that both the as-synthesized and calcined nanopowders were of a mesoporous structure with an average pore diameter of about 4 nm. Structural characterizations of such nanopowders were carried out using X-ray diffraction (XRD) and high-resolution electron transmission microscopy (HRTEM), which showed that the powders were gadolinium doped ceria solid solutions with crystallite sizes of less than 30 nm. Furthermore, an analysis of HRTEM images revealed the existence of structural distortion and dislocations in the nanoparticles containing the mesopores.

Original language	English
Pages (from-to)	19-24
Number of pages	6
Journal	Materials Letters
Volume	125
DOIs	https://doi.org/10.1016/j.matlet.2014.03.126
State	Published - 15 Jun 2014
Externally published	Yes

Keywords

Combustion synthesis
Gadolinium doped ceria
Mesoporous
Microstructure

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10.1016/j.matlet.2014.03.126

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@article{39d909b97ac94abc82e432adbda2eac2,

title = "Structural studies on the gadolinium doped nanoceria prepared by combustion synthesis",

abstract = "Nanosized Ce1-xGdxO2-x/2 (x=0.1, 0.2 and 0.3) with different stoichiometric compositions was synthesized by the self-sustaining combustion method and calcined at 700 °C for 2 h. Nitrogen adsorption-desorption isotherm measurements showed that both the as-synthesized and calcined nanopowders were of a mesoporous structure with an average pore diameter of about 4 nm. Structural characterizations of such nanopowders were carried out using X-ray diffraction (XRD) and high-resolution electron transmission microscopy (HRTEM), which showed that the powders were gadolinium doped ceria solid solutions with crystallite sizes of less than 30 nm. Furthermore, an analysis of HRTEM images revealed the existence of structural distortion and dislocations in the nanoparticles containing the mesopores.",

keywords = "Combustion synthesis, Gadolinium doped ceria, Mesoporous, Microstructure",

author = "A. Akbari-Fakhrabadi and Mangalaraja, {R. V.} and Garcia-Pinilla, {M. A.} and M. Jamshidijam and Chan, {S. H.}",

note = "Funding Information: The authors acknowledge FONDECYT , Government of Chile (Project no. 1130916 ), CONICYT -Programa de Energia 2012 (No. PASANTIA0027 ; ID FAST 2750 ) and the Direction of Investigation, University of Concepcion , Chile for the support to carry out this project.",

year = "2014",

month = jun,

day = "15",

doi = "10.1016/j.matlet.2014.03.126",

language = "English",

volume = "125",

pages = "19--24",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

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T1 - Structural studies on the gadolinium doped nanoceria prepared by combustion synthesis

AU - Akbari-Fakhrabadi, A.

AU - Mangalaraja, R. V.

AU - Garcia-Pinilla, M. A.

AU - Jamshidijam, M.

AU - Chan, S. H.

N1 - Funding Information: The authors acknowledge FONDECYT , Government of Chile (Project no. 1130916 ), CONICYT -Programa de Energia 2012 (No. PASANTIA0027 ; ID FAST 2750 ) and the Direction of Investigation, University of Concepcion , Chile for the support to carry out this project.

PY - 2014/6/15

Y1 - 2014/6/15

N2 - Nanosized Ce1-xGdxO2-x/2 (x=0.1, 0.2 and 0.3) with different stoichiometric compositions was synthesized by the self-sustaining combustion method and calcined at 700 °C for 2 h. Nitrogen adsorption-desorption isotherm measurements showed that both the as-synthesized and calcined nanopowders were of a mesoporous structure with an average pore diameter of about 4 nm. Structural characterizations of such nanopowders were carried out using X-ray diffraction (XRD) and high-resolution electron transmission microscopy (HRTEM), which showed that the powders were gadolinium doped ceria solid solutions with crystallite sizes of less than 30 nm. Furthermore, an analysis of HRTEM images revealed the existence of structural distortion and dislocations in the nanoparticles containing the mesopores.

AB - Nanosized Ce1-xGdxO2-x/2 (x=0.1, 0.2 and 0.3) with different stoichiometric compositions was synthesized by the self-sustaining combustion method and calcined at 700 °C for 2 h. Nitrogen adsorption-desorption isotherm measurements showed that both the as-synthesized and calcined nanopowders were of a mesoporous structure with an average pore diameter of about 4 nm. Structural characterizations of such nanopowders were carried out using X-ray diffraction (XRD) and high-resolution electron transmission microscopy (HRTEM), which showed that the powders were gadolinium doped ceria solid solutions with crystallite sizes of less than 30 nm. Furthermore, an analysis of HRTEM images revealed the existence of structural distortion and dislocations in the nanoparticles containing the mesopores.

KW - Combustion synthesis

KW - Gadolinium doped ceria

KW - Mesoporous

KW - Microstructure

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U2 - 10.1016/j.matlet.2014.03.126

DO - 10.1016/j.matlet.2014.03.126

M3 - Article

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SN - 0167-577X

VL - 125

SP - 19

EP - 24

JO - Materials Letters

JF - Materials Letters

ER -

Structural studies on the gadolinium doped nanoceria prepared by combustion synthesis

Abstract

Keywords

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